If you installed Armoury Crate using Revo - so it tracks all changes - then Revo may be able to continue where the uninstaller left off (I'm assuming you did the uninstall outside Revo).
Another option I've used many times successfully is to re-install the software (Armoury) but MAKE SURE you do this via Revo's Install function. Once installed, get Revo to do the uninstall & deep scan etc.